Learn · How to fix
app-ads.txt exists but has no valid lines
Updated Oct 7, 2026 · data from 12 App Store genres · top free + top grossing charts · US · iOS + Android
Short answerThe file is reachable but contains no line that follows the required format, so it authorizes no seller.
9 of 883
ad-monetized top US apps in this index have this finding (1%)
Why it matters
An empty or unparseable file is treated like a missing one by buyers that enforce app-ads.txt.
How to fix it
- Add your partners' lines in the format: ad system domain, seller ID, DIRECT or RESELLER, and the optional certification authority ID.
Apps with this finding
Each report lists the exact lines involved.
- B1G+: Watch College Sports · Big Ten Network
- BlazeTV: Pro-America · Blaze Media LLC
- Zwift: Indoor Cycling Fitness · Zwift, Inc
- Bebi: Baby Games for Preschool · Bebi LLC
- Dropout · Connected Ventures
- LazyFit: Workout For Beginners · Next Vision Limited
- FORM: Strength, Pilates, Gym · SJC Companies, LLC
- The Sculpt Society · THE SCULPT SOCIETY LLC
- beIN SPORTS CONNECT · beIN Media Group, LLC
Related
Based on the IAB Tech Lab ads.txt/app-ads.txt and sellers.json specifications. Numbers are automated observations of public files on the date above.